Assistive Technology for Visually Impaired and Blind People  

 - London :  Springer,  2008. 
 - xxvii, 725 p.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781846288661 
<br/><br/><label>Subjects--Topical Terms: </label><br/>People with visual disabilities--Orientation and mobility--Technological innovations.<br/>People with visual disabilities--Means of communication--Technological innovations.<br/>Blind, Apparatus for the--Technological innovations.<br/>Communication devices for people with disabilities--Technological innovations.
<br/><br/><label>LC Class. No.: </label>T10.5 HER